PubMed · 830810
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J T McFadden. 1977. Aneurysm clips.. https://doi.org/10.3171/jns.1977.46.1.0129
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We used tagged MR imaging to investigate the flow in two lateral and two terminal saccular intracranial aneurysm models of different neck sizes. Imaging was performed with a 1.5-T superconducting MR system using 2D fast spatial modulation of magnetization (SPAMM) sequences with an intersegmental delay of 25 milliseconds. The flow in the saccular aneurysm models varied with the shape and size of the neck: flow was faster in wider-necked aneurysms than in those with narrower necks.
The helical coiled-spring aneurysm clip with crossed legs evolved from clips designed by Mayfield and Scoville. The problems encountered during its development stimulated an evaluation of metals used in neurosurgery, the creation of implant standards, and the use of metals with greater strength and tissue compatibility; these metals later proved to be safe during magnetic resonance imaging.
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